Method and apparatus for use in connection with prespinning, spinning and twisting



Och Z2, '1968 J. J. KEYSER 3,406,510

METHOD AND APPARATUS FOR USE 1N CONNECTION WITH PRESPINNING, SPINNING AND TWISTING Filed April l, 1966 2 Sheets-Sheet 2 i tion will appear more clearly from the following specification in connection with the accompanying drawings,

United States Patent O claims. (ci. s7-ss.49) 10 ABSTRACT OF THE DISCLOSURE A thread guiding arrangement for use in connection with prespinning, spinning and twisting operations in which a thread processed by drafting means is fed directly from said drafting means in a rst direction axially through the rotating thread receiving bobbin and then is passed in a second direction opposite to said iirst direction and outside of the bobbin toV and through rotary thread guiding means such as a spinning ring and from there is directly wound onto the bobbin, the thread receiving and supporting means extending into the spindle rail carrying driving means and being adapted selectively to be moved into and out of engagement with said driving means.

' bin rotating within said thread guide, which thread guiding arrangement considerably differs from standard thread guiding arrangements.

It is an object of the present invention toprovide a thread guiding arrangement which will facilitate the spindle construction, the journalling of the spindle and the handling thereof over heretofore known spindles.

-It is also an object of the present invention to provide a thread guiding arrangement which will speed up the working operations.

Still another object of this invention consists in the provision of a thread guiding arrangement as set forth above, which will make it possible, unimpeded by any machine parts, to effect a rewinding of the yarn from the twister bobbin directly to the machine.

These and other objects and advantages of the invenin which:

' FIG. 1 diagrammatically illustrates partly in section a spinning device with a thread guiding arrangement according to the present invention in working position.

FIG. 2 illustrates partly in view and partly in section the arrangement of FIG. 1 in a position in which the bobbin is tilted out of its working position.

FIG. `3 is a spinning device with a thread guiding arrangement according to the present invention in connection with a driven flyer.

FIG. 4 illustrates partly in view and partly in section the device of FIG. 3 with an axially lowered flyer and tilted out twisting bobbin.

The thread guiding arrangement according to the present invention is characterized primarily in that the thread delivered by the drafting or delivery frame is passed axially through the rotating yarn receiving bobbin, at the end of the latter is deviated in opposite direction and passed through the rotating thread guide and via the latter is rewound upon the yarn receiving bobbin. This thread guiding arrangement yields a new working method 3,406,510 Patented Oct. 22, 1968 ,e ICC and in particular makes possible over heretofore known thread guiding arrangements, at the same spindle speed, to double the number of twists in the thread per unit of length; Furthermore, the thread guiding arrangement according to the present invention will createv the conditions on the basis of which the spindle structure, the journalling of the spindleY and the handling thereof will' be considerably facilitated over heretofore known spindles. This simplification of the spindle structure will in turn simplify the structure of the entire machine, whether it be a prespinning, spinning-or twisting machine.

The device equipped with a thread guiding arrangement according to the present invention is characterized `primarily in that a hollow 'thread guiding shankl extends in longitudinal direction through the rotatably journalled yarn receiving Ibobbin and is connected to` the machine frame. More specifically, the yarn receiving bobbin which is operatively connected with a drive may be rotatably journalled on the hollow thread guiding shank so that the latter will 4serve a double purpose, namely on one hand will form a centricly arranged thread guide and on the other hand will serve as support 'for the rotating yarn receiving bob-bin. The said hollow thread guiding shank may, in conformity with the present invention, be so mounted that the hollow thread guiding shank is connected to a spindle rail provided along the machine, said spindle rail simultaneously serving as support for the drive of the yarn receiving bobbin.

The spindle rail may be hollow and may receive the drive for the yarn receiving bobbin which latter has the drive receiving end extending into the spindle rail. In this way, a feature is taken advantage of which is also employed with some of the heretofore known machines, namely the mounting of the spindle drive within the spindle rail so that the drive will be protected against outer 4iniiuences, especially against lint.

According to a further development of the present invention, the hollow thread guide with the yarn receiving bobbin rotating therearound is tiltable away from the drive so as to be drivingly disconnected from said drive. This feature brings about the advantage that the withdrawal of the yarn receiving bobbin 'will be greatly facilitated and furthermore that the tilting of -the bobbin away from the drive simultaneously brings the yarn receiving bobbin to a stop.

If, with a thread guiding arrangement according to the present invention, it is desired to spin and twist by means of a ring and traveller, the rotary thread guide may, in conformity with the present invention, be designed as a spinning ring known per se and may be tilted together with the thread guiding shank and the yarn receiving bobbin and may in view of such tilting 1operation be disconnected from a device `for an axial displacement of said rotary thread guide. Consequently, provision is made that the spinning ring is movable in customary manner parallel to the yarn receiving bobbin as is the rule with machines of this type. However, the jonrnalling of the yarn receiving bobbin on the thread guiding shank permits the tilting of said yarn receiving bobbin together with the spinning ring so that the spinning ring will leave its driving mechanism by means of which it is displaced parallel to the axis of the yarn receiving bobbin.

According to a further development of the present invention, the hollow thread guiding shank is composed of two telescopically interengaging shank sections of which that section which is movable into the other shank section is provided with a spinning bell known per se. Inasmuch as a spinning bell in order to be able to work surrounds the yarn receiving bobbin, it impedes the withdrawal of the yarn receiving bobbin. The features of the present invention as outlined above, however, make it possible axially to displace the spinning belI with the" movable shank section of the hollow thread guiding shank so that the two shank sections will disengage each other and will be located axially one behind the other. This makes it possible to tilt away the shank section which carries the yarn receiving bobbin and to -withdraw the yarn receiving bobbin without being impeded by the spinning bell.

If it is desired to operate with a flyer, accordingy to the present invention, the hollow thread guiding shank is made of two hollow shank sections telescopically movable into each other, while that shank section which is movable into the other shank section carries the yer and is driven. The operation for mounting and withdrawing a yarn receiving bobbin is the same as set forth above in connection with the spinning bell.

A further feature of the in-vention consists in that the flyer is driven and thus can be effective in the customary manner.

According to a further development of the present invention the driven shank section may be journalled in an axially displaceable transmission box the axial displacement stroke of which is so dimensioned that the yarn receiving bobbin is adapted to be tilted together with the outer shank section supporting the same. Thus, the axial displacement of the yer also brings about a displacement of its drive.

The location of the yarn receiving bobbin with regard to the drafting or delivery mechanism may be selected at random. However, it is particularly advantageous, in conformity `with the present invention, to mount the hollow thread guiding shank on the spindle rail and directly downwardly so that the drafting I or delivery mechanism will be located above the spindle rail. With such an arrangement, the journalling conditions for the yarn receiving bobbin in suspended arrangement are particularly advantageous and the handling is considerably simpler than is the case when the yarn receiving bobbin is standing upright from the spindle rail. With the suspended arrangement of the yarn receiving bobbin the entire space below the yarn receiving bobbin is free to thereby facilitate the mounting from below and the withdrawing in downward direction of the yarn receiving bobbin after the thread guiding shank has been tilted. This design which keeps the space below the yarn receiving bobbin free also brings about the advantage that the yarn wound upon the yarn receiving bobbin can be withdrawn downwardly and be rewound. In this connection it will be obvious that a winding device can without diiculties be arranged below the yarn receiving bobbin so that the rewinding of the yarn from the yarn receiving bobbin can be effected without changing the position of the y-arn receiving bobbin. This is important particularly because the spinning or twisting operation with the thread guiding arrangement according to the present invention is effected at double speed and thus the output of the machine is doubled. In these circumstances, a short stopping time of the individual yarn receiving bobbins can be put up with in order to subject the same to a rewinding operation without removing the yarn receiving bobbin from the machine. Such rewinding operation is carried out in a very short time so that the same yarn receiving bobbin after it has become empty can again be used for the spinning or twisting operation. In this instance, the sleeves remain on the machine and thus form -a part thereof. It will thus be evident from the above that the thread guiding arrangement according to the present invention brings about not only a speed up of the working operation and a simplification of the machine structure, but also facilitates the subsequent -working `operations because: a rewinding of the yarn on the yarn receiving bobbin can be effected directly on the machine.

Referring now to the drawings in detail and FIGS. l and 2 thereof in particular, a side wall 1 of the machine 4frame supports the various individual units. That portion 4 lvof themachine side wall 1 which is upwardly inclined supports the drafting frame 2 which may be of any standard design. Below the drafting frame 2, the two-sectional spindle rail 3 is connected. This spindle rail comprises a U-shaped rail section 3a and a likewise U-shaped section 4. Rail sections 3a and 4 together define a hollow chamber 5. The said rail sections are hinged together by a joint `6 by means of which rail section d can be tilted away from rail section 3a. Rail section 4 has connected thereto a hollow thread guiding shank 7 which extends vertically downwardly from and through rail section 4 and protrudes therefrom. Within rail section 4, thread guiding shank 7 supports the antifriction bearing 8 ywhereas the free end Of shank 7 supports the antifrictionbearing 9. Bearings 8 and 9 carry a sleeve 10 which is freely rotatable about the hollow thread guiding shank 7. Mounted on sleeve 10 is a yarn receiving bobbin 11. In order to'prevent an accidental withdrawal of bobbin 11 in downward direction, it is held by noses or pins 12 `which are adapted to yield radially inward against the thrust of springs 13 to permit a downward withdrawal of yarn receiving bobbin 11 or to mount Stich bobbin on sleeve 10. Inserted with force fit into the lower end of sleeve 10 is a hollow stud 14 which locates the outer ring of the antifriction bearing 9. Within the range of the antifriction bearing 8, the extension 15 of sleeve 10 which extends into the rail section 4 is engaged by a tangential driving belt 16 the other end of which engages a roller 17 freely rotatably journalled in spindle rail section 3m. Tangential belt 16 is adapted to drive sleeve 10 and thus the yarn receiving bobbin 11.

Within the range of the lower gap between spindle rail sections 3a and 4, a yoke member 18 is -connected to the spindle rail section 4. This member 18 serves as support for a guiding bar 19 for the spinning ring 20 with traveller 21. Spinning ring holder 22 which surrounds the guiding bar 19 with a sliding play is provided with a linger 23 which engages a circulating chain 24 forming an endless chain passing around the sprockets 25 and 26, one of said sprockets being driven in any convenient manner. The drive itself is not illustrated, but is effected in customary manner alternately in one or the other direction of rotation in order to move the spinning ring 20 over the length of the yarn receiving bobbin 11 upwardly and downwardly and to create the desired winding picture and a uniform bobbin thickness.

The course of the thread is clearly evident from FIG. 1. The thread 27 to be spun passes from the drafting frame 2 into the upper end of the thread guiding shank 7 and leaves said shank at the lower end thereof. It then passes over the lower edge of the thread guiding shank 7 and is deviated in upward direction so that it passes to the spinning ring or its rotor 21 which carries out the winding of the thread upon the yarn receiving bobbin 11. The thread will in this way receive a double twist.

When the yarn receiving bobbin 11 has been completely filled with wound on thread, it may, in conformity with FIG. 2, be tilted from the vertical position of FIG. l into the inclined position of FIG. 2 away from wall 1 of the machine frame. This tilting operation may be effected by a handle on the guiding bar 19. When tilting the yarn receiving bobbin 11 about hinge 6 of spindle rail 3, the sleeve extension 1S disengages the tangential driving belt 16 which remains in engagement with roller 17. At the same time, nger 23 disengages chain 24, and the axial movement of the spinning ring 20 is interrupted. Thus disengaged from the drive, the yarn receiving bobbin 11 quickly cornes to a stop and can be withdrawn in downward direction from sleeve 10.

However, it is also possible below the device according to FIGS. 1 and 2 to provide a winding device so that the latter can rewind the yarn directly from the yarn receiving bobbin 11. This requires only little time which does not materially matter in view of the double speed at which the spinning is effected with the thread guiding arrangement according to the invention, and causes less time loss than the withdrawal of the yarn receiving bobbin 11 and its relocation on a special winding machine. After the rewinding of the yarn receiving bobbin 11 has been effected, sleeve is again free and available for the next spinning operation for which purpose it is tilted back into engagement with the tangential belt 16 so as to be rotated again by the latter. In this instance a special bobbin 11 is not needed because the sleeve 10 will directly serve as yarn carrier. At the same time finger 23 of spinning ring 20 engages chain 24 and again carries out reciprocatory movements parallel to the axis of the yarn receiving bobbin.

Referring now to the embodiment illustrated in FIGS. 3 and 4, this embodiment concerns an arrangement according to which a flyer is employed and in which a worm drive is used instead of a belt drive. The illustrated worm drives may, of course, if it should be so desired, be replaced by a belt drive according to FIGS. 1 and 2 or by otherdrives. Similarly, the belt drive of FIGS. 1 and 2 could, of course, also `be replaced by a worm drive or other drives. Those parts of FIGS. 3 and 4 which correspond to similar parts of FIGS. l and 2 have been designated with the same reference numerals as in FIGS. 1 and 2.

Similar to the arrangement of FIGS. 1 and 2, wall 1 of the machine frame supports a hollow spindle rail 3 cornprising spindle sections 3a and 4 hinged together at 6. Along the spindle rail section 3 there extends the working worm 28 meshing with a worm wheel 29 which is mounted on the extension of sleeve 10 for rotating the latter. The said extension 15 is rotatably journalled on shank 7 by means of antifriction bearings 8. Shank 7 forms a hollow shank and is connected to rail section 4.

The free end of thread guiding shank 7 can support an antifriction bearing 9 forming the second support for sleeve 10. A hollow thread guiding portion 7a extends below and into the hollow shank 7, The hollow passage is below the end of the yarn receiving bobbin 11 at 37 deviated radially outwardly and engages one wing 30 of the two-wing yer 31. The free end of wing -30 has a radially inwardly directed thread guiding arm 32 around which the thread 27 may during the spinning operation be wound a plurality of times.

Hollow thread guiding shank section 7a with flyer 31 is rotatably journalled in the beam-shaped transmission housing 33 by means of a bearing 34. Transmission housing 33 is connected to wall 1 of the machine frame. Longitudinally within transmission housing 33 there extends a wormk 35 meshing with a Worm Wheel 36 which in its turn is connected to the thread shank section 7a between the bearings 34. Thus, the thread guiding shank section 7a with yer 31 is driven independently of the yarn receiving bobbin 11 and sleeve 10.

The transmission housing 33 is arranged on wall 1 of the machine frame so as to be displaceable in downward direction as indicated by the guiding means 39. When the yarn receiving bobbin is filled with the thread 27 delivered by the delivery or drafting frame, the transmission housing 33 is displaced downwardly on wall 1 so that the telescopically interengaging thread guiding shank sections 7 and 7a disengage each other. In this position also the yer 31 will be below the yarn receiving bobbin 11 as shown in FIG. 4 so that the yarn receiving bobbin 11 can be tilted away as likewise shown in FIG. 4. In this position it is also possible to withdraw the yarn receiving bobbin 11 downwardly. When yarn receiving bobbin 11 is tilted away into the position shown in FIG. 4, it comes to a standstill because the driving connection between worm wheel 29 and worm 28 is interrupted.

Also with this embodiment it is possible without withdrawing the yarn receiving bobbin 11, to rewind the wound up thread directly by providing a winding arrangement below the yarn receiving bobbin.

The course of the thread in the arrangement of FIGS. 3

and 4 substantially corresponds to that described in connection with FIGS. 1 and 2. More specifically, thread 27 passes from a drafting or delivery frame (not illustrated) through the two thread guiding shank sections 7 and 7a and then passes through opening 37 of shank section 7a radially upwardly and moves through a wing 30 of flyer 31 to the thread guide 32 from where through eye 38 the winding up of the thread upon the yarn receiving bobbin 11 is effected. In connection therewith, the transmission housing 33 and thus the ilyer 31 moves continuously upwardly and downwardly so that thread 2.7 will be wound upon yarn receiving bobbin 11 over the entire length thereof. Only after the winding up operation has been completed, will flyer 31 be stopped and transmission housing 33 and flyer 31 including thread guiding section 7a are lowered into the positionshown in FIG. 4 to permit tilting of yarn receiving bobbin 11 into FIG. 4 position and the disengagement of driving worm 28.

Instead of providing a flyer in conformity with the arrangement of FIGS. 3 and 4, it is also possible to emplo a spinning bell.

It is, of course, to be understood that the present invention is, by no means, limited to the particular arrangements shown in the drawings but also comprises any modications within the scope of the appended claims. Thus, while the drawings show the respective arrangements with suspended yarn receiving bobbin 11, it is also possible without changing the course of the thread and while using the same devices to arrange the yarn receiving bobbin in upright position. This merely involves a reversal of the devices illustrated in the drawings so that the drafting and delivery frame is not above but below the device. In other words, it would be merely necessary to turn the drawings upside down to have an arrangement as just mentioned. Of course, in such an instance the advantage would be lost that the yarn receiving bobbin could be withdrawn downwardly.

What I claim is:

1. A thread guiding method for use in connection with prespinning, spinning and twisting operations, according to which a thread processed on drafting means is conveyed through rotary thread guiding means onto a bobbin rotating within said rotary thread guiding means, which includes the steps of in a continuous manner passing the thread processed on said drafting means directly from said drafting means, in a rst direction axially through the rotating thread receiving bobbin, in a continuous manner moving the thread sections passed through said bobbin in a second direction opposite to said first direction and outside said bobbin to and through said rotary thread guiding means, and in a continuous manner conveying the thread sections passed through said rotary thread guiding means directly to and winding the same onto said bobbin.

2. An arrangement for use in connection with pre- Spinning, spinning and twisting operations, which includes: frame means, rotatable thread receiving and supporting means for receiving and supporting the thread to be wound thereon to form a cop, said frame means including spindle rail means rotatably supporting at least a portion of said thread receiving and supporting means, tubular thread guiding means extending in the longitudinal direction of and through said rotatable supporting means, at least a portion of said tubular thread guiding means being supported by a portion of said frame means, rotary thread guiding means surrounding said rotatable thread receiving and supporting means in radially spaced relationship, and driving means supported by said spindle rail means and drivingly connected to said thread receiving and supporting means for rotating the same.

3. An arrangement according to claim 2, which includes bearing means supported by said tubular thread guiding means and rotatably supporting said thread receiving and supporting means, and driving means operable selectively to drivingly engage said thread receiving and supporting means for rotating the same. i Y

4. An arrangement according to claim 2, inA lwhich said spindle rail means is hollow and the driving means are arranged within said hollow spindle rail means, said thread receiving and supporting means having a portion extending into said hollow spindlerail means and being adapted selectively to be moved into and out lof driving engagement with said driving means.

V5. An arrangement according to claim 4,V in which said tubular thread guiding means together with said rotatable thread receiving and supporting -rneansy is tiltably supported by saidiframe means for selectively moving into and out of driving engagement with said driving means.V

6. An arrangement according to claimiS, in which said rotary thread guiding means is formed by aspinningrling and is tiltably connected to said frame means fortilting togetherl with'said thread receiving and supporting means and said tubular thread guiding means, and reciprocating means operatively connected to said spinning ring means for reciprocating the 'same in 'axial direction of said thread receiving and supporting means, said reciprocating means including first means supported by said frame means and also including second means connected to said spinning ring means and movable from a rst position in which it is in operative engagement with said `iirst means into a second position in response to a tilting movement of said spinning ring means in which it is out of operative engagement with Said first means.

7. An arrangement according to claim 2, in which said tubular thread guiding means comprises a first section stationarily supported by said frame means and also comprises a second section telescopically displaceable into and out of said first section and adapted to support a spinning bell.

8. An arrangement according to claim 2, in which said tubular thread guiding means comprises a first section rotatably supported by said frame means and also cornprises a second section telescopically movable into and 4 mais out of saidfirst section,4 flyer means Supported by said second section, and means drivingly'connected to said second section for rotating the same and thereby said yer means'f. A... v 9. An arrangement according to claim '2, in which said tubular thread guiding means comprises" a first section supported by',a"rst"portion'of`sid frame means andin which 'said rst portion is pivotally connected to another -v portion ofsaid frame means for permitting a' tiltingl movment of s'aidthr'ead' receiving and 'supportingmea'ns r'ela tive tosaid other frame portion, and in which said .tubular thread guiding means also comprises a second section telescopically movable intol and out of` said first sectim said ksecond -section being axiallyl movableoutof saidj'first section to"such, an' extent as'to permit said tilting move;- rnent of 'said thread receiving and supporting ineans, driv' ing means operatively connected to saids'econd section and movable in axial direction vof said second Se'ctiomj 10. An larrangement according to claim 2, in which said frame'means includes vla' spindle rail, and in'which said tubular thread guiding means Ais suspended on said spindle rail, and" antifriction bearing means supported by Ivsaid tubular thread guiding means- 'and Vrotatably supporting said thread receiving and supporting means.

References Cited- AUNITED sTATEs PATENTS 401,22 Kimmel er ai slr-'58.67

Davis et al 57-75 FRANK J. COHEN, Primary Examiner. g DONALD WATKINS, Assistant Examiner. 

